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1 markConcepts of Relations

CSEC Mathematics · May/June 2018 · Paper 2 · Question 4(a)(iv)

The function f with domain, A = {1, 2, 3} is given by f(x) = (1/2)x - 3.

Explain why f(x) ≠ 5 for the function specified on page 13.

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Other parts of this question

  1. 4(a)(i)What is the value of f(1)?[1 mark]
  2. 4(a)(ii)Find the value of x for which f(x) = -2.[1 mark]
  3. 4(a)(iii)An ordered pair for the function is expressed in the form (a, b). Using your answers to (a) (i) and (a) (ii), or otherwise, list the ordered pairs for the…[2 marks]
  4. 4(b)(i)a)3x - 1 < 11[1 mark]
  5. 4(b)(i)b)2 ≤ 3x - 1[1 mark]
  6. 4(b)(ii)Represent the solution to 2 ≤ 3x - 1 < 11 on the number line shown below.[2 marks]

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